When 5 is added to 2 times a number, the result is 45. find the number.
1 answer:
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Answer:
$
Step-by-step explanation:
Let the cost of one brownie,
cost of one cookie
Times on both sides on the second equation above to get the following:
To find the value of , use substitution:
the cost of a brownie is $
Hope this helps :)
Answer:
The chord is bisected.
Step-by-step explanation:
see the attached figure to better understand the problem
In the circle of the figure
The diameter is the segment DE
The chord is the segment AB
PA=PB=r ----> radius of the circle
Triangles PAC and PBC are congruent right triangles by SSS
Because
PA=PB
PC is a common side
AC=BC ----> Applying Pythagoras Theorem
therefore
The chord AB is bisected
